Swift's lawyer counters that Dymtrow's claim is "ludicrous" because the manager never followed through on the mandatory paperwork to assure himself of such royalties.

The two sides have been fighting since 2007, when Dymtrow (who has also represented Britney Spears) first sued the Swifts because he believed they breached a contract by paying him just $10,000 for his work launching Taylor’s career.

No trial date has been set for the latest lawsuit. Swift's new album, meanwhile, comes out on October 25.